FAQ Categories Troubleshooting | rekordbox｜DJ software for professional DJs

When PRO DJ LINK is connected, the tracks of the streaming service is not displayed on DJ equipment or mobile device.

When PRO DJ LINK is connected, the tracks of the streaming service cannot be used.

https://rekordbox.com/en/support/faq/troubleshooting-errors-android/#faq-q110092

I rotated the mobile device sideways, but the screen does not become DJ screen.

Turn off the rotation lock function of your mobile device and turn it sideways again.

If you are connected to PRO DJ LINK, your screen will be locked to portrait mode.

*It may not be possible to rotate the mobile device sometimes, such as when displaying a pop-up message.

https://rekordbox.com/en/support/faq/troubleshooting-errors-android/#faq-q110086

“Failed to activate the mobile device. Wait a while and try activating again.” was displayed when I tried to activate the mobile device. What do I do next?

Mobile devices with rekordbox for iOS/Android ver. 3.4.2 or earlier installed cannot be activated.

Please use one of the following rekordbox versions.

rekordbox for iOS/Android ver. 3.4.3 or later

Please also see here.

https://rekordbox.com/en/support/faq/troubleshooting-errors-android/#faq-45345

Nothing happens when I connect rekordbox for Android (ver. 4) to the USB terminal of a CDJ/XDJ.

Note: rekordbox for Android (ver. 4) does not support wired connection (USB Type-A, USB Type-B, or Ethernet).
Wireless connection (Wi-Fi) is supported.
To learn how to connect, click here.

https://rekordbox.com/en/support/faq/troubleshooting-errors-android/#faq-q110042

I’ve connected my mobile device and DJ equipment to the same Wi-Fi network, but even if I tap [Connect to CDJ/XDJ/DJM] in rekordbox for Android, it won’t connect to the DJ equipment.

Communication between devices may be blocked by network security.
Wi-Fi router security settings may block communication between devices. Please check the settings of your Wi-Fi router.
If you're using a VPN connection, please turn off the VPN connection.
A firewall blocking the communication can be one of other possible reasons.

https://rekordbox.com/en/support/faq/troubleshooting-errors-android/#faq-q110043

I cannot import tracks to this app.

Tracks with DRM (Digital Rights Management), or tracks in an unsupported format cannot be imported to rekordox.

https://rekordbox.com/en/support/faq/troubleshooting-errors-android/#faq-q110012

When rekordbox for Mac/Windows (ver. 5) is connected via Wi-Fi, the error message [No mobile device is found] appears and it won’t connect with rekordbox for Android (ver. 4).

You can't connect rekordbox for Mac/Windows (ver. 5) with rekordbox for Android (ver. 4) via Wi-Fi.
To do this, you'll need to use rekordbox for Mac/Windows (ver. 6) or later.
Library sync features are made possible by the reconfigured libraries in rekordbox for Mac/Windows (ver. 6) and rekordbox for Android (ver. 4).
If you connect rekordbox for Mac/Windows (ver. 6) and rekordbox for Android (ver. 4) via Wi-Fi, you can use the new library sync feature, Mobile Library Sync.

https://rekordbox.com/en/support/faq/troubleshooting-errors-android/#faq-q110013

I connected rekordbox for Mac/Windows and rekordbox for Android to the same Wi-Fi router, but I can’t find my mobile device in rekordbox for Mac/Windows.

Communication between devices may be blocked by network security.
Wi-Fi router security settings may block communication between devices. Please check the settings of your Wi-Fi router.
If you're using a VPN connection, please turn off the VPN connection.
A firewall blocking the communication can be one of other possible reasons.

https://rekordbox.com/en/support/faq/troubleshooting-errors-android/#faq-q110014

I can’t use track search when a rekordbox for Android track is loaded to DJ equipment. I can’t call up a Hot Cue on another track when a rekordbox for Android track is loaded to DJ equipment.

You can't use track search when a track is loaded to DJ equipment using rekordbox for Android.
You can't call up a Hot Cue on another track when you’re using rekordbox for Android because selected Hot Cues are canceled when you change the track that’s being played.

https://rekordbox.com/en/support/faq/troubleshooting-errors-android/#faq-q110044

I can’t change the SMART FADER settings.

If you are connected to the DJ controller, access [Settings] > [DJ Controller Device Name] to use the setting items to change the settings.
If you are using the app on its own (device is turned sideways), access [Settings] > [General] to use the setting items to change the settings.

https://rekordbox.com/en/support/faq/troubleshooting-errors-android/#faq-q110097

When I connect to DJ Controller with a USB cable, the sounds from the headphones and the master are combined in the master output of DJ Controller. There is no sound from the headphones.

We have confirmed that 2-stereo outputs cannot be done on some Android devices.

By setting Android MONO/STEREO switch on the rear panel of DJ controller to MONO, the master and headphones will be output in mono.

*If your DJ controller is a type without a switch on the rear panel of the controller, make sure rekordbox for Android and the DJ controller are connected and access [Settings] > [DJ Controller Device Name] > [Android MONO / STEREO] to change the setting to MONO.

https://rekordbox.com/en/support/faq/troubleshooting-errors-android/#faq-q110088

When I connect to a DJ controller with a USB cable, there is no sound from the mobile device.

When you connect to the DJ controller with a USB cable, no sound is output from the mobile device.

To do so, use the MASTER output terminals and headphones output terminals of the DJ controller.

https://rekordbox.com/en/support/faq/troubleshooting-errors-android/#faq-q110090

If you are connected to the DJ controller via Bluetooth, no sound comes from your mobile device, or the sound is at a very low volume.

When connected via Bluetooth, access the volume controls on your mobile device and use the MASTER LEVEL knob on the DJ controller to adjust the volume.
Check that both are set to an appropriate volume.

https://rekordbox.com/en/support/faq/troubleshooting-errors-android/#faq-q110087

When I connect to DJ Controller with Bluetooth and press the Headphones CUE buttons (channel)/(master), there is no sound from the DJ Controller headphones.

When you are connected to DJ Controller with Bluetooth and you want to use the Headphones CUE buttons (channel)/(master), enable Split Output with the following steps:

Connect the split cables to the mobile device.
Connect the L side of the split cables to the speaker, and the R side to the headphones, as shown in the figure below.
Open the rekordbox for Android settings. Under Audio, turn on Split Output.

(1) Speaker with built-in amplifier, etc.
(2) Headphones
(3) Plug for the speaker with built-in amplifier, etc.
(4) Plug for the headphones
(5) Split cable (not supplied / This is supplied with DDJ-200.)
(6) USB/Lightning to 3.5 mm headphones jack (not supplied)

Split cables whose functions have been tested are as follows:

(Manufacturer / Model number / Product name)
Native Instruments / － / Traktor DJ Cable
Sound Active / 3.5-STJX2–0.5M / Exform iDJ Split Cable

https://rekordbox.com/en/support/faq/troubleshooting-errors-android/#faq-q110089

When I connect to DDJ-FLX4 with Bluetooth, there is no sound from the MASTER output terminals and headphones output terminals of DDJ-FLX4.

When you connect to DDJ-FLX4 with Bluetooth, no sound is output from the MASTER output terminals and headphones output terminals of DDJ-FLX4.

To do so, use the speaker or headphone terminal of the mobile device.

https://rekordbox.com/en/support/faq/troubleshooting-errors-android/#faq-q110091

When I connect to DDJ-FLX2 with Bluetooth, there is no sound from the MASTER output terminals and headphones output terminals of DDJ-FLX2.

When you connect to DDJ-FLX2 with Bluetooth, no sound is output from the MASTER output terminals and headphones output terminals of DDJ-FLX2.
To do so, use the speaker or headphone terminal of the mobile device.

https://rekordbox.com/en/support/faq/troubleshooting-errors-android/#faq-q110099

There is no response even after I connect the DJ controller and my mobile device with a USB cable.

Establish a connection via Bluetooth.
Some DJ controllers and Android devices with USB micro B terminals will not communicate even if connected via USB.

*For details refer to your DJ Controller Instruction Manual.
*Some Android devices may not be able to communicate with the DJ controller if the controller is connected with a USB cable.

https://rekordbox.com/en/support/faq/troubleshooting-errors-android/#faq-q110093

I can’t connect rekordbox for Android and the DJ controller with Bluetooth.

Check the Bluetooth indicator and perform the following.

If the Bluetooth indicator is lit up, this indicates that rekordbox for Android and the DJ controller are connected via Bluetooth. Long-press the [BEAT SYNC] button on both decks on the DJ controller to disconnect the Bluetooth connection.
If the Bluetooth indicator is not lit up, this indicates that rekordbox for Android and the DJ controller are connected via a USB connection. Close the DJ software running on the device connected via the USB connection or unplug the USB cable.

https://rekordbox.com/en/support/faq/troubleshooting-errors-android/#faq-q110096

Sound skips, cuts, or is affected by unwanted noise. What should I do?

Try the following.

When using rekordbox for Android, if the buffer size is too low, sound cutting or unwanted noise may occur.
You can adjust the buffer size in rekordbox for Android [Settings] > [Audio] > [Buffer size].
First, select a large value such as 1024. If the problem clears up, adjust to a value small enough that you can’t feel a delay (latency).
*The appropriate value depends on the system environment.

Some Android devices may not connect correctly and the stereo sound may not output normally.
- DDJ-GRV6 or DDJ-FLX4 may become able to output audio properly if the [Android MONO/STEREO] switch on the DDJ-GRV6 or DDJ-FLX4 rear panel is set to [MONO].
- If your DJ controller is a type without a switch on the rear panel of the controller, make sure rekordbox for Android and the DJ controller are connected and access [Settings] > [DJ Controller Device Name] > [Android MONO / STEREO] to change the setting to MONO.
- For details (on how to set to [MONO]), refer to your DJ Controller Instruction Manual.

The environment you're using the mobile device in may be a factor.
The following may solve the issue:
- Update your rekordbox for Andorid to the latest version
- Turn off the mobile device and turn it on again
- Quit all other applications
- Try disabling the wireless network or other wireless connections, antivirus application, low-power mode, etc. (Before quitting antivirus security software, disable the internet connection to ensure the security of your mobile device.)

Some Android models may have model-specific problems that can't be resolved.

If the problem persists even after addressing the above, please get in touch at Inquiries.

https://rekordbox.com/en/support/faq/troubleshooting-errors-android/#faq-q110094

When I tried to download tracks via Cloud Library Sync, the message “Download Error: Unable to download some tracks because no file was found.” was displayed.

You will see download errors when:

There are no tracks in Dropbox
There are no tracks in Google Drive.

https://rekordbox.com/en/support/faq/troubleshooting-errors-android/#faq-50653